山东电气成套设备里，高低压柜门指示灯有啥讲究？

　　What are the requirements for the high and low voltage cabinet door indicator lights in Shandong Electric's complete set of equipment?

　　在山东的工厂车间、配电房里，山东电气成套设备中的高低压柜随处可见。细心的人会发现，高低压柜的门上都装着不同颜色的指示灯，常见的就是红色和绿色，偶尔还能看到黄色的。不少从事电力运维的朋友或采购山东电气成套设备的企业负责人，都会疑惑：这些指示灯到底有啥讲究？为啥合闸要用红色灯，分闸却用绿色灯？今天就专门围绕山东电气成套设备中的高低压柜门指示灯，给大家把这些疑问讲明白。

　　High and low voltage cabinets can be seen everywhere in the factory workshops and distribution rooms of Shandong Electric's complete equipment. Observant people will notice that the doors of high and low voltage cabinets are equipped with indicator lights of different colors, with the most common being red and green, and occasionally yellow. Many friends engaged in power operation and maintenance, or business leaders who purchase complete sets of equipment from Shandong Electric, may wonder: What are the requirements for these indicator lights? Why is a red light used for closing the switch, but a green light is used for opening the switch? Today, we will specifically focus on the high and low voltage cabinet door indicator lights in Shandong Electric's complete set of equipment, and explain these questions to everyone.

　　要明确，高低压柜门的指示灯可不是随便装的，颜色选择更不是厂家说了算，而是有明确的行业标准规定。这背后的核心逻辑，是利用大家对颜色的普遍认知来传递信号，毕竟电力操作容不得半点马虎，清晰的信号提示能直接降低操作风险。就像我们过马路时看红绿灯一样，红色和绿色的含义早已形成共识，这种共识也被沿用在了山东电气成套设备的高低压柜上。

　　First of all, it should be clear that the indicator lights on the high and low voltage cabinet doors are not installed casually, and the color selection is not the the final say of the manufacturer, but there are clear industry standards. The core logic behind this is to use everyone's general understanding of colors to convey safety signals, after all, power operation cannot tolerate any carelessness, and clear signal prompts can directly reduce operational risks. Just like when we look at traffic lights when crossing the street, the meanings of red and green have already formed a consensus, which has been used in the high and low voltage cabinets of Shandong Electric's complete equipment.

　　先说说红色灯，它的核心含义是“危险、禁止”。这和红绿灯里红灯表示禁止通行的逻辑完全一致，在高低压柜上，红灯亮就代表设备处于合闸状态。合闸意味着电路接通，设备正在带电工作，这时候不能随意打开柜门进行检修或触碰内部部件，否则很容易引发触电、电弧灼伤等事故。对山东工业场景中的运维人员来说，看到红灯亮就会立刻绷紧弦，明确当前设备处于危险工作状态，避免误操作。

　　Let's talk about the red light first, its core meaning is "danger, prohibition". This is completely consistent with the logic of red lights indicating prohibition of passage in traffic lights. On high and low voltage cabinets, a red light indicates that the equipment is in a closed state. Closing means that the circuit is connected and the equipment is working with electricity. At this time, it is absolutely not allowed to open the cabinet door for maintenance or touch internal components at will, otherwise it is easy to cause safety accidents such as electric shock and arc burns. For operation and maintenance personnel in Shandong's industrial scene, when the red light is on, they will immediately tighten the safety string, clarify that the current equipment is in a dangerous working state, and avoid misoperation.

　　再看绿色灯，它对应的含义是“、允许”，和红绿灯里绿灯表示可以通行的意思相呼应。在高低压柜上，绿灯亮说明设备处于分闸状态，此时电路已经断开，设备不带电。对山东的电力运维人员而言，这就是明确的“信号”——只有看到绿灯亮，确认设备分闸断电后，才能按照规范流程打开柜门，进行内部检修、维护或更换部件。这种颜色提示简单直接，哪怕是新手运维人员，也能快速判断设备状态，降低操作失误的概率。

　　Looking at the green light again, its corresponding meaning is "safe, allowed", which corresponds to the green light in traffic lights indicating that traffic is allowed. On the high and low voltage cabinets, a green light indicates that the equipment is in the open state, and the circuit has been disconnected, rendering the equipment non energized. For the power operation and maintenance personnel in Shandong, this is a clear "safety signal" - only when they see the green light on and confirm that the equipment is disconnected and powered off, can they open the cabinet door according to the standard process for internal inspection, maintenance, or component replacement. This color prompt is simple and direct, even novice operation and maintenance personnel can quickly determine the equipment status, reducing the probability of operational errors.

　　除了常见的红、绿两色，有些山东电气成套的高低压柜上还会有黄色指示灯，它的含义是“警告、注意”。这种黄色灯一般不会单独用来表示分合闸状态，更多是用于提示设备的异常情况，比如电路出现过载、故障预警等。当黄色灯亮起时，就提醒运维人员需要及时检查设备，排查潜在问题，避免小故障发展成大事故。不过要注意，黄色灯的具体提示含义会因设备型号不同略有差异，操作前查看设备说明书。

　　In addition to the most common red and green colors, some high and low voltage cabinets of Shandong Electric also have yellow indicator lights, which mean "warning, attention". This yellow light is generally not used alone to indicate the opening and closing status, but is more used to indicate abnormal situations of the equipment, such as circuit overload, fault warning, etc. When the yellow light is on, it reminds the operation and maintenance personnel to check the equipment in a timely manner, identify potential problems, and avoid small faults from developing into major accidents. However, it should be noted that the specific meaning of the yellow light may vary slightly depending on the device model. It is best to check the device manual before operation.

　　可能有人会问，为啥非要遵循这样的颜色标准？对山东电气成套设备来说，标准化的颜色指示灯是保障电力的重要细节。山东作为工业大省，不管是重型工业、制造业还是新能源产业，都离不开稳定可靠的电气成套设备，而高低压柜作为电力分配的核心部件，其操作直接关系到生产。如果指示灯颜色不统一，不同厂家用不同颜色表示相同状态，运维人员在操作不同设备时很容易混淆，进而引发事故。所以山东本地的电气成套设备厂家，在生产高低压柜时，都会严格遵循和行业标准，确保指示灯颜色和含义统一规范。

　　Some people may ask, why do we have to follow such color standards? For Shandong Electric's complete equipment, standardized color indicator lights are important details to ensure power safety. As a major industrial province, Shandong cannot do without stable and reliable electrical equipment for heavy industry, manufacturing, and new energy industries. As the core component of power distribution, the operation safety of high and low voltage cabinets is directly related to production safety. If the color of the indicator lights is not uniform and different manufacturers use different colors to represent the same status, it is easy for operation and maintenance personnel to confuse different brands of equipment, which can lead to safety accidents. So local electrical equipment manufacturers in Shandong strictly follow national and industry standards when producing high and low voltage cabinets, ensuring that the colors and meanings of indicator lights are standardized and consistent.

　　给山东本地的企业和运维人员提个实用建议：在选用和操作山东电气成套的高低压柜时，要确认设备指示灯符合相关标准，避免选用非标产品；其次，操作前一定要先观察指示灯颜色，牢记“红灯合闸危险、绿灯分闸”的核心原则，不能在红灯亮时强行打开柜门；另外，日常维护中也要注意检查指示灯是否正常工作，比如有没有不亮、闪烁异常等情况，发现问题及时处理，确保指示灯能准确传递信号。

　　Finally, a practical suggestion for local enterprises and operation and maintenance personnel in Shandong: when selecting and operating the high and low voltage cabinets of Shandong Electric, the first step is to confirm that the equipment indicator lights comply with relevant standards and avoid using non-standard products; Secondly, before operation, it is necessary to observe the color of the indicator light and remember the core principle of "dangerous closing of the red light and safe opening of the green light". It is absolutely not allowed to forcefully open the cabinet door when the red light is on; In addition, during daily maintenance, attention should also be paid to checking whether the indicator lights are working properly, such as whether they are not on or flashing abnormally. If any problems are found, they should be dealt with in a timely manner to ensure that the indicator lights can accurately transmit safety signals.

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